Yep, with our own government in Australia pinching pennies on training adequate numbers of doctors, we find it easier to hire doctors that other countries have paid to train. Doctors from the UK, with a similar medical culture, high training standards, and good English are gratefully received, as next to zero work needs to be done to get them ready to practice here, unlike doctors from non-English speaking backgrounds, or countries whose training standards differ to the point of requiring testing for recertification to practice here.
The main problem UK junior doctors have in coming to Australia is that for about half the year we consider 25C days a bit on the cool side, rather than anything work-related. Although junior doctors still get shit rosters compared to their more senior colleagues, weekend work is well paid, and the fight against unsafe practices like 36 hour shifts has been largely run and won.
While we have a similar conservative government, they don't have the same sort of polling lead that would let them attack hospital doctors' conditions, and they seem preoccupied with dismantling free access to GPs, rather than the hospital side of things, and even there they've been forced to back off from their more overt vandalism.